"Vietnam is where he first began covering warfare, and he gave his firsthand reporting from virtually every major battlefield around the world since," "CBS Evening News" anchor Scott Pelley said in a special report announcing Simon’s death.

In a Twitter post, Pelley called him "a journalist of extraordinary courage."

Here is a sampling of other reaction to Simon's death.

Condolences to the family of my friend and long-time colleague, CBS News Correspondent Bob Simon.